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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of SwiftyUserDefaults with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 4

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
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Builder version: 4.40.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/sunshinejr/SwiftyUserDefaults.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/sunshinejr/SwiftyUserDefaults
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 558c015 Update README.md
Cloned https://github.com/sunshinejr/SwiftyUserDefaults.git
Revision (git rev-parse @):
558c015e49524ebf5031b66980a722a4c225c302
SUCCESS checkout https://github.com/sunshinejr/SwiftyUserDefaults.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/sunshinejr/SwiftyUserDefaults.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
[3/15] Compiling SwiftyUserDefaults DefaultsSerializable.swift
[4/15] Compiling SwiftyUserDefaults OptionalType.swift
[5/16] Compiling SwiftyUserDefaults DefaultsObserver.swift
/Users/admin/builder/spi-builder-workspace/Sources/DefaultsObserver.swift:51:41: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 31 | #if !os(Linux)
 32 |
 33 | public final class DefaultsObserver<T: DefaultsSerializable>: NSObject, DefaultsDisposable where T == T.T {
    |                                     `- note: 'T' previously declared here
 34 |
 35 |     public struct Update {
    :
 49 |         }
 50 |
 51 |         private static func deserialize<T: DefaultsSerializable>(_ value: Any?, for key: DefaultsKey<T>) -> T.T? where T.T == T {
    |                                         `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 52 |             guard let value = value else { return nil }
 53 |
[6/16] Compiling SwiftyUserDefaults DefaultsKeys.swift
[7/16] Compiling SwiftyUserDefaults DefaultsKey.swift
[8/16] Compiling SwiftyUserDefaults DefaultsBridges.swift
[9/16] Compiling SwiftyUserDefaults Defaults.swift
/Users/admin/builder/spi-builder-workspace/Sources/Defaults.swift:35:12: warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
33 | ///  ~~~
34 |
35 | public var Defaults = DefaultsAdapter<DefaultsKeys>(defaults: .standard, keyStore: .init())
   |            |- warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'Defaults' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'Defaults' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
36 |
37 | public extension UserDefaults {
[10/16] Compiling SwiftyUserDefaults DefaultsAdapter.swift
/Users/admin/builder/spi-builder-workspace/Sources/Defaults.swift:35:12: warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
33 | ///  ~~~
34 |
35 | public var Defaults = DefaultsAdapter<DefaultsKeys>(defaults: .standard, keyStore: .init())
   |            |- warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'Defaults' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'Defaults' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
36 |
37 | public extension UserDefaults {
[11/16] Emitting module SwiftyUserDefaults
/Users/admin/builder/spi-builder-workspace/Sources/Defaults.swift:35:12: warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
33 | ///  ~~~
34 |
35 | public var Defaults = DefaultsAdapter<DefaultsKeys>(defaults: .standard, keyStore: .init())
   |            |- warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'Defaults' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'Defaults' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
36 |
37 | public extension UserDefaults {
/Users/admin/builder/spi-builder-workspace/Sources/DefaultsObserver.swift:51:41: warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 31 | #if !os(Linux)
 32 |
 33 | public final class DefaultsObserver<T: DefaultsSerializable>: NSObject, DefaultsDisposable where T == T.T {
    |                                     `- note: 'T' previously declared here
 34 |
 35 |     public struct Update {
    :
 49 |         }
 50 |
 51 |         private static func deserialize<T: DefaultsSerializable>(_ value: Any?, for key: DefaultsKey<T>) -> T.T? where T.T == T {
    |                                         `- warning: generic parameter 'T' shadows generic parameter from outer scope with the same name; this is an error in the Swift 6 language mode
 52 |             guard let value = value else { return nil }
 53 |
/Users/admin/builder/spi-builder-workspace/Sources/PropertyWrappers.swift:28:23: warning: static property 'cached' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
24 |
25 | #if swift(>=5.1)
26 | public struct SwiftyUserDefaultOptions: OptionSet {
   |               `- note: consider making struct 'SwiftyUserDefaultOptions' conform to the 'Sendable' protocol
27 |
28 |     public static let cached = SwiftyUserDefaultOptions(rawValue: 1 << 0)
   |                       |- warning: static property 'cached' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'cached' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
29 |     public static let observed = SwiftyUserDefaultOptions(rawValue: 1 << 2)
30 |
/Users/admin/builder/spi-builder-workspace/Sources/PropertyWrappers.swift:29:23: warning: static property 'observed' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
24 |
25 | #if swift(>=5.1)
26 | public struct SwiftyUserDefaultOptions: OptionSet {
   |               `- note: consider making struct 'SwiftyUserDefaultOptions' conform to the 'Sendable' protocol
27 |
28 |     public static let cached = SwiftyUserDefaultOptions(rawValue: 1 << 0)
29 |     public static let observed = SwiftyUserDefaultOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'observed' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'observed' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
30 |
31 |     public let rawValue: Int
[12/16] Compiling SwiftyUserDefaults BuiltIns.swift
[13/16] Compiling SwiftyUserDefaults Defaults+Observing.swift
[14/16] Compiling SwiftyUserDefaults Defaults+StringToBool.swift
[15/16] Compiling SwiftyUserDefaults Defaults+Subscripts.swift
[16/16] Compiling SwiftyUserDefaults PropertyWrappers.swift
/Users/admin/builder/spi-builder-workspace/Sources/PropertyWrappers.swift:28:23: warning: static property 'cached' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
24 |
25 | #if swift(>=5.1)
26 | public struct SwiftyUserDefaultOptions: OptionSet {
   |               `- note: consider making struct 'SwiftyUserDefaultOptions' conform to the 'Sendable' protocol
27 |
28 |     public static let cached = SwiftyUserDefaultOptions(rawValue: 1 << 0)
   |                       |- warning: static property 'cached' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'cached' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
29 |     public static let observed = SwiftyUserDefaultOptions(rawValue: 1 << 2)
30 |
/Users/admin/builder/spi-builder-workspace/Sources/PropertyWrappers.swift:29:23: warning: static property 'observed' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
24 |
25 | #if swift(>=5.1)
26 | public struct SwiftyUserDefaultOptions: OptionSet {
   |               `- note: consider making struct 'SwiftyUserDefaultOptions' conform to the 'Sendable' protocol
27 |
28 |     public static let cached = SwiftyUserDefaultOptions(rawValue: 1 << 0)
29 |     public static let observed = SwiftyUserDefaultOptions(rawValue: 1 << 2)
   |                       |- warning: static property 'observed' is not concurrency-safe because non-'Sendable' type 'SwiftyUserDefaultOptions' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'observed' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
30 |
31 |     public let rawValue: Int
/Users/admin/builder/spi-builder-workspace/Sources/Defaults.swift:35:12: warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
33 | ///  ~~~
34 |
35 | public var Defaults = DefaultsAdapter<DefaultsKeys>(defaults: .standard, keyStore: .init())
   |            |- warning: var 'Defaults' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
   |            |- note: convert 'Defaults' to a 'let' constant to make 'Sendable' shared state immutable
   |            |- note: annotate 'Defaults' with '@MainActor' if property should only be accessed from the main actor
   |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
36 |
37 | public extension UserDefaults {
Build complete! (21.58s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "SwiftyUserDefaults",
  "name" : "SwiftyUserDefaults",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.11"
    },
    {
      "name" : "ios",
      "version" : "9.0"
    },
    {
      "name" : "tvos",
      "version" : "9.0"
    },
    {
      "name" : "watchos",
      "version" : "2.0"
    }
  ],
  "products" : [
    {
      "name" : "SwiftyUserDefaults",
      "targets" : [
        "SwiftyUserDefaults"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "SwiftyUserDefaults",
      "module_type" : "SwiftTarget",
      "name" : "SwiftyUserDefaults",
      "path" : "Sources",
      "product_memberships" : [
        "SwiftyUserDefaults"
      ],
      "sources" : [
        "BuiltIns.swift",
        "Defaults+Observing.swift",
        "Defaults+StringToBool.swift",
        "Defaults+Subscripts.swift",
        "Defaults.swift",
        "DefaultsAdapter.swift",
        "DefaultsBridges.swift",
        "DefaultsKey.swift",
        "DefaultsKeys.swift",
        "DefaultsObserver.swift",
        "DefaultsSerializable.swift",
        "OptionalType.swift",
        "PropertyWrappers.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.0"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.